Results 71 to 80 of about 434,289 (296)

Unlocking Multi‐Valley Energy Pockets and Interface‐Induced Phonon Filtering in InSb Thermoelectrics by Reaction‐Driven Interface Engineering

Advanced Functional Materials, EarlyView.
InSb, a narrow‐bandgap semiconductor with high carrier mobility, is promising for thermoelectric energy conversion but suffers from high lattice thermal conductivity and strong bipolar conduction. Here, in situ interface engineering using Co2O3 nanoprecursors forms hierarchical CoSbx/In2O3/CoSb3 heterostructures that enhance phonon scattering and ...
Jiwu Xin, Xiao Yang, Xiao‐Lei Shi, Chengyun Xu, Xi Ling, Pengyu Zhang, Jinfeng Dong, Yong Du, Haisheng Chen, Ting Zhang, Zhi‐Gang Chen   +10 more
wiley   +1 more source

Analysis of the input power flow characteristics of cylindrical shells with combination boundaries

Journal of Low Frequency Noise, Vibration and Active Control, 2019
In this study, the input power flow problem of the cylindrical shell with complex acoustic boundaries was investigated. According to the acoustic characteristic of control domain which combination free interface and rigid wall interface at the same time ...
Luyun Chen, Yong Liu
doaj   +1 more source

A Non‐Reciprocal Architected Porous Medium

Advanced Functional Materials, EarlyView.
ABSTRACT In several fluid flow, energy‐dumping, and energy‐harvesting applications, a dominant flow direction or dominant resistance direction is desirable. In this study, we propose a simple modular geometry that doubles flow resistance in one direction relative to the opposite direction, while maintaining laminar viscous flow.
Clément Vezies, Pablo Zavattieri, Nicolás Silin   +2 more
wiley   +1 more source

Understanding the Effects of Conductive Polymer Electrode Coating on Recorded Neural Signals

Advanced Healthcare Materials, EarlyView.
Conductive polymer coatings are widely explored to improve the quality of signals recorded with chronically implanted neural electrodes, offering enhanced biocompatibility along with reduced electrode impedance. Combining computational modelling and data from PEDOT:PTS coated and PtIr electrodes in rats, we show that improvements in signal quality with
Karthik Sridhar, Judith Evers, Alexandre Trotier, Manus Biggs, Madeleine M. Lowery   +4 more
wiley   +1 more source

Research on correlation model between transducer temperature and acoustic performance parameters of ultrasonic machining system

AIP Advances, 2022
In the process of ultrasonic vibration cutting (UVC), the acoustic performance parameters of ultrasonic machining system change because of systems heating up and cutting loads. The changes of acoustic performance parameters will affect resonant frequency,
Hong-xian Ye, Xu-yi Yang, Xiao-ping Hu, Bao-hua Yu, Xi Kang   +4 more
doaj   +1 more source

Enhanced sources of acoustic power surrounding AR 11429

Journal of Physics: Conference Series, 2013
Multi-frequency power maps of the local acoustic oscillations show acoustic enhancements (\acoustic-power halos") at high frequencies surrounding large active region. Computational seismic holography reveals a high-frequency \acoustic-emission halo", or \seismic glory" surrounding large active regions.
Donea, Alina, Hanson, Christopher
openaire   +2 more sources

Properties of high-frequency wave power halos around active regions: an analysis of multi-height data from HMI and AIA onboard SDO

, 2012
We study properties of waves of frequencies above the photospheric acoustic cut-off of $\approx$5.3 mHz, around four active regions, through spatial maps of their power estimated using data from Helioseismic and Magnetic Imager (HMI) and Atmospheric ...
A. Fossum, A.A. Norton, B. Fleck, B.W. Hindman, B.W. Lites, C. Nutto, C.G. Toner, C.S. Rosenthal, D. Kuridze, D.C. Braun, E. Khomenko, E. Khomenko, E. Khomenko, E. Khomenko, E. Khomenko, E. Khomenko, F. Hill, G. Vigeesh, H. Schunker, H. Schunker, H. Schunker, J.H. Borrero, J.H. Thomas, J.R. Lemen, K. Hayashi, K. Libbrecht, K. Nagashima, K.D. Leka, L. Jacoutot, O.V. Ladenkov, P. Kumar, P. Kumar, P. Kumar, P.F. Moretti, P.H. Scherrer, P.S. Cally, R. Jain, R. Nigam, S. Couvidat, S. P. Rajaguru, S. Shelyag, S.M. Hanasoge, S.M. Hanasoge, S.P. Rajaguru, S.P. Rajaguru, T.J. Bogdan, T.J. Bogdan, T.M. Brown, T.R. Metcalf, T.R. Metcalf, W. Finsterle, Xudong Sun   +51 more
core   +1 more source

Acousto-optic tunable filters (AOTFs) optimised for operation in the 2-4μm region [PDF]

, 2015
Acousto-Optic Tunable Filters (AOTFs) are electronically-controlled bandpass optical filters. They are often preferred in applications in spectroscopy where their agility and rapid random-access tuning can be deployed to advantage. When used for spectral
Johnson, N.P., Pannell, C., Valle, S., Ward, J.D.   +3 more
core   +1 more source

Mapping the Cerebral Organoid Landscape: A Systematic Review of Preclinical 3D Models in Neuroscience

Advanced Healthcare Materials, EarlyView.
Cerebral organoids are transforming brain research, yet the field remains fragmented. This comprehensive systematic review maps 738 studies published between 2014 and 2024 to uncover trends, gaps, and opportunities across neuroscience. Introducing OrganoidMap—an interactive, open‐access platform to explore and compare models—this work enables ...
Anna Wolfram, Vanessa Arnold, Maik Wolfram‐Schauerte, Anastassiya Moskalchuk, Caroline Trust, Marie Vontz, Mona Scheurenbrand, Vijayasarathy Sampath‐Kumar, Sogand Ahari, Carlos Romero‐Nieto, Lisa Sevenich   +10 more
wiley   +1 more source

Search domain dimension expansion of robust matched-field source radiated power estimation

Xibei Gongye Daxue Xuebao
Compared with the traditional source radiated power estimation method, the matched-field source radiated power estimation method can obtain more accurate estimation results. However, its performance is greatly influenced by environmental mismatch.
ZHANG Shaodong, SUN Chao
doaj   +1 more source